SamTrans interview questions

Unprofessional. Made an appointment on the system via email they sent for a selected date and time, for a phone interview. They emailed me an automated confirmation of the phone interview for the selected date and time that I chose. Upon the day of the phone interview, I did not receive a call and waited for about 20 minutes before I moved forward with the rest of my day. Then the following week they called me saying I had an interview despite it being a week after the date I chose. Disorganized and unprofessional. Did not even notify me of any changes of the interview date. Why even bother to make an appointment for an interview when they will just call you whenever they feel like it? Wasted my time.